279期：→№←【02,04,05,06,07,09,10,13,15,16,18,20,24,28,31,32,35,37,40,43,44,45,46,49】开：10对
280期：→№←【01,02,04,06,07,11,12,13,15,22,23,24,26,28,30,31,34,37,38,40,42,43,46,47】开：15对
281期：→№←【01,04,05,06,08,12,13,15,17,18,19,20,22,28,31,32,35,36,37,38,42,47,48,49】开：10错
282期：→№←【02,06,09,10,11,17,19,22,24,25,27,28,29,30,34,36,39,40,41,42,43,44,46,47】开：23错
283期：→№←【03,04,05,09,10,13,14,15,17,18,19,20,22,23,26,27,28,30,32,33,40,41,44,46】开：18对
284期：→№←【02,04,06,10,11,13,16,17,18,23,24,25,26,27,28,31,32,41,43,44,46,47,48,49】开：32对
285期：→№←【03,04,06,09,10,13,14,15,21,22,25,28,29,30,33,35,37,38,42,43,44,47,48,49】开：**